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Finding the Fourth Proportional to 480,855.36, 721,348.65 and 200,307

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Solution

The fourth proportional to 480,855.36, 721,348.65 and 200,307 is: 300,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,855.36 : 721,348.65 = 200,307 : x
  2. Step 2: Convert to fraction form
    480,855.36/721,348.65 = 200,307/x
  3. Step 3: Cross multiply
    480,855.36x = 721,348.65 × 200,307
  4. Step 4: Simplify right side
    480,855.36x = 144,491,184,035.55
  5. Step 5: Solve for x
    x = 144,491,184,035.55/480,855.36
  6. Step 6: Final answer
    x = 300,487.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.